vocabulary Flashcards

(50 cards)

1
Q

how does a constant function look on a graph?

A

horizontal line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

define quadratic

A

polynomial function with the highest exponent being 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

whats the shape of a quadratic called?

A

parabala

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the 5 methods to solve a quadratic

A

factoring, graphing, formula, complete the square, square roots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

define factoring

A

to write something out as multiplication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

whats always the first step in factoring?

A

gcf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what do you need to have for factoring?

A

leading coefficient must be positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

define square

A

numbers that have a rational square root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what needs to be true for a variable to be squared

A

needs to have an even exponenet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

define perfect cube

A

taking the cube root of something and getting a rational number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what to the exponents of veriables need to be to be considered a “perfect cube”

A

a multiple of 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what does the index on a radical tell you?

A

tells you to what root the radicand is being taken, if no index, then its to the square root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what does the coefficent of a radical do?

A

you multiply this by the radical as you’re going

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does the radical in a radical do?

A

its the symbol that divides the radicand from the index and coefficent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does the radicand do in a radical?

A

its the number being taken down by the index number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

if a radical has an even index and an odd radicand, what happens?

A

the radical is undefined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what can we assume when using variables in radicals?

A

that its a real number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

When do you need an absolute value bar on the coefficient of a radical?

A

When theres an even index, original problem has an even exponent (under radical), and if theres an odd exponent in the answer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

When will you NEVER need an absolute value bar in a radical?

A

when theres an odd index (such as 3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

6 (index=3)√5

A

six cube root of 5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what are extremas called that are either the lowest of the minimums or the highest of the maximums

A

absolute extrema (min/max)

22
Q

What are all extremas called regardless of their size in relation to other extremas

A

relative extrema

23
Q

what are factors called when its the same binomial with opposite signs?
(x+5)(x-5)

24
Q

what does standard form mean? are there usually fractions

A

you are supposed to multiply out the factors and there usually arent fractions

25
the max number of zeroes in any function is directly based on the number of the ________
degree
26
the max number of relative zeros is the same number as the
degree - 1
27
true/false: every absolute extrema is a relative extrema
true
28
true/false: every relative extrema is an absolute extrema
false
29
Polynomial functions and their name by degree: 0
constant
30
Polynomial functions and their name by degree: 1
linear
31
Polynomial functions and their name by degree: 2
quadratic
32
Polynomial functions and their name by degree: 3
cubic
33
Polynomial functions and their name by degree: 4
quartic
34
Polynomial functions and their name by degree: 5
quintic
35
Polynomial functions and their name by degree: 6
6th degree polynomial
36
Polynomial functions and their name by degree: 99
99th degree polynomial
37
behavior of a graph as x approaches positive infinity and negative infinity
end behavior
38
where the graph crosses the x-axis
real zeroes
39
coefficient of the term with the highest degree
leading coefficient
40
for a polynomial of one variable, its the greatest exponent of its variable
degree
41
key on the calc that can be used when you're trying to find when an equation has an exact x given. F(5), F(1/2), F(0.999)
store
42
what does the word "polynomials" mean?
many terms
43
a comparison of things that aren't equal
inequality
44
numbers that can be plotted on a number line (1/2, 5, -0.22222, square root of anything positive)
real
45
the positive integer whole numbers (1,55, square root of a perf square)
natural
46
a number that can be expressed as a fraction with a denominator other than zero (5, 1/6, -8/13)
rational
47
any number that can be counted as a whole with no parts (1, 2, 7, -33)
whole
48
cannot be expressed on a number line (square root of a negative)
imaginary
49
a set of positive/negative whole numbers excluding zero (-12, 15, 1, 2/1)
integer
50
numbers with a decimal that doesnt simplify, cannot be written as a fraction ( 0.123257483928347)
irrational